AD/PA-31/91 Amdt 1 - Outboard Flap Track Attachment - CANCELLED

This document cancels an old aircraft safety rule that used to require owners of Piper PA-31 series aeroplanes (such as the Navajo) to modify a specific wing component called the "outboard flap track attachment" (the hardware that guides the wing flaps during flight).

Originally, this modification was mandatory to prevent potential safety failures, with a compliance deadline set in 1981. Because that deadline passed decades ago, the safety authority assumes all affected aircraft were fixed long ago. This instrument formally removes the rule from the books so owners no longer need to track or comply with this specific requirement.

Who it affects: Owners and operators of Piper PA-31 series aircraft. Why it matters: It clears obsolete regulations from the law, recognizing that the safety issue was resolved years ago.